Home / 11,946.80-16,486.30-6,641.60

Finding the Fourth Proportional to 11,946.80, 16,486.30 and 6,641.60

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Solution

The fourth proportional to 11,946.80, 16,486.30 and 6,641.60 is: 9,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.80 : 16,486.30 = 6,641.60 : x
  2. Step 2: Convert to fraction form
    11,946.80/16,486.30 = 6,641.60/x
  3. Step 3: Cross multiply
    11,946.80x = 16,486.30 × 6,641.60
  4. Step 4: Simplify right side
    11,946.80x = 109,495,410.08
  5. Step 5: Solve for x
    x = 109,495,410.08/11,946.80
  6. Step 6: Final answer
    x = 9,165.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.